I think the ruby should say "You receive a 5/10/15% chance to parry attacks from one handed weapons."

This raises the interesting question of whether a rhino's horn counts as one-handed or two-handed...

Now f2p 60 Xadaganian summy with 60/60/60 tailor/weaponsmith/alchemist, bleah gear, 555/555 runes
Now p2p 28 Xadaganian avenger with 20 weaponsmith
I'm on an extended break from Allods at the moment, but I'm lurking here to keep up with what's happening. From the looks of things in 5.0.02, I'm better off where I am.